High-voltage device and method for ascertaining the risk of condensation in cabinets in a high-voltage device of this kind

Abstract

A method ascertains the risk of condensation in an enclosure of a high-voltage device. The interior temperature in the enclosure is ascertained using an interior temperature sensor arranged in the enclosure, thereby obtaining interior temperature values TI. An exterior temperature of the enclosure is ascertained using an exterior temperature sensor arranged outside of the enclosure, thereby obtaining exterior temperature values TA. The interior temperature values TI and the exterior temperature TA values are transmitted to a data processing unit. The data processing unit ascertains a temperature difference value TD by calculating the difference between the interior temperature value TI and the exterior temperature values TA based on TD=TI−TA. The data processing unit generates a warning signal if the temperature difference value TD lies below 3° C.

The invention claimed is: 
     
       1. A method for ascertaining a risk of condensation in a cabinet of a high-voltage device, which comprises the steps of:
 ascertaining a cabinet interior temperature in the cabinet by obtaining interior temperature values TI by an interior temperature sensor disposed in the cabinet; 
 ascertaining an exterior temperature of the cabinet by obtaining exterior temperature values TA by an exterior temperature sensor disposed outside the cabinet; 
 transmitting the interior temperature values TI and the exterior temperature values TA to a data processor; 
 calculating, via the data processor, a difference between the interior temperature values TI and the exterior temperature values TA to ascertain a temperature difference value TD according to TD=TI−TA; and 
 generating, via the data processor, a warning signal if the temperature difference value TD is below 3 degrees Celsius, wherein the data processor detects a state of an open cabinet door if the temperature difference value TD drops below 3 degrees Celsius within 1 to 3 minutes. 
 
     
     
       2. The method according to  claim 1 , which further comprises ascertaining, via the data processor, a change in the temperature difference values TD as a function of time. 
     
     
       3. The method according to  claim 1 , which further comprises ascertaining a number of states of the open cabinet door within a predefined period of time. 
     
     
       4. The method according to  claim 1 , wherein:
 the interior temperature sensor and the exterior temperature sensor are connected to a communication unit via a short-range communication connection; 
 the communication unit being connected to the data processor via a long-range communication connection; and 
 the data processor is a data processing cloud. 
 
     
     
       5. The method according to  claim 4 , wherein the communication unit has a local storage unit and a processor, the interior temperature values TI and exterior temperature values TA transmitted by the interior and exterior temperature sensors are stored locally on the local storage unit. 
     
     
       6. The method according to  claim 4 , wherein the communication unit has an antenna for position determination. 
     
     
       7. A high-voltage device, comprising:
 a cabinet; 
 an interior temperature sensor disposed in said cabinet; 
 an exterior temperature sensor disposed outside of said cabinet in proximity thereto; 
 a communication unit connected to said interior temperature sensor and said exterior temperature sensor via a short-range communication connection; and 
 a data processor connectable to said communication unit, said data processor configured to carry out the method according to  claim 1 . 
 
     
     
       8. A method for ascertaining a risk of condensation in a cabinet of a high-voltage device, which comprises the steps of:
 ascertaining a cabinet interior temperature in the cabinet by obtaining interior temperature values TI by an interior temperature sensor disposed in the cabinet; 
 ascertaining an exterior temperature of the cabinet by obtaining exterior temperature values TA by an exterior temperature sensor disposed outside the cabinet; 
 transmitting the interior temperature values TI and the exterior temperature values TA to a data processor; 
 calculating, via the data processor, a difference between the interior temperature values TI and the exterior temperature values TA to ascertain a temperature difference value TD according to TD=TI−TA; 
 ascertaining, via the data processor, a change in temperature difference values TD as a function of time; 
 generating, via the data processor, a warning signal if the temperature difference value TD is below 3 degrees Celsius; and 
 detecting, via the data processor, a failure of a heating device disposed in the cabinet if the temperature difference value TD drops below 3 degrees Celsius within a period of time of more than three minutes. 
 
     
     
       9. A method for ascertaining a risk of condensation in a cabinet of a high-voltage device, which comprises the steps of:
 ascertaining a cabinet interior temperature in the cabinet by obtaining interior temperature values TI by an interior temperature sensor disposed in the cabinet; 
 ascertaining an exterior temperature of the cabinet by obtaining exterior temperature values TA by an exterior temperature sensor disposed outside the cabinet; 
 transmitting the interior temperature values TI and the exterior temperature values TA to a data processor; 
 calculating, via the data processor, a difference between the interior temperature values TI and the exterior temperature values TA to ascertain a temperature difference value TD according to TD=TI−TA; 
 generating, via the data processor, a warning signal if the temperature difference value TD is below 3 degrees Celsius; and 
 concluding, via the data processor, that an additional heating device of the cabinet has failed, and delivering a corresponding warning signal, in an event of an exterior temperature value TA being below −33 degrees Celsius and an interior temperature value TI being less than −30 degrees Celsius. 
 
     
     
       10. A non-transitory storage medium storing computer executable instruction for performing a method for ascertaining a risk of condensation in a cabinet of a high-voltage device, the method comprises the steps of:
 ascertaining a cabinet interior temperature in the cabinet by obtaining interior temperature values TI by an interior temperature sensor disposed in the cabinet; 
 ascertaining an exterior temperature of the cabinet by obtaining exterior temperature values TA by an exterior temperature sensor disposed outside the cabinet; 
 transmitting the interior temperature values TI and the exterior temperature values TA to a data processor; 
 calculating, via the data processor, a difference between the interior temperature values TI and the exterior temperature values TA to ascertain a temperature difference value TD according to TD=TI−TA; and 
 generating, via the data processor, a warning signal if the temperature difference value TD is below 3 degrees Celsius, wherein the data processor detects a state of an open cabinet door if the temperature difference value TD drops below 3 degrees Celsius within 1 to 3 minutes.